18426591. NONAQUEOUS ELECTROLYTE SECONDARY BATTERY simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)
Contents
- 1 NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 How does the depth of the short-circuit promoting portion affect its effectiveness in preventing internal short-circuits?
- 1.11 What testing methods were used to validate the effectiveness of the short-circuit promoting portion in preventing internal short-circuits?
- 1.12 Original Abstract Submitted
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Organization Name
TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor(s)
Kosuke Iwase of Konan-shi, Aichi-ken (JP)
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A simplified explanation of the abstract
This abstract first appeared for US patent application 18426591 titled 'NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Simplified Explanation
The electrode body of a secondary battery described in the abstract includes a core portion with electrode mixture layers, terminal connecting portions with current collector foil exposed portions, and a mixture layer non-facing portion where the electrode mixture layer faces the current collector foil exposed portion.
- Short-circuit promoting portion with a predetermined depth (d) is formed in a separator provided between the electrode sheets in the mixture layer non-facing portion to prevent internal short-circuits between electrode mixture layers.
- Internal short-circuits are caused between the electrode mixture layer and the current collector foil exposed portion before the battery temperature rapidly increases, allowing for charging to be stopped and preventing overheating.
Potential Applications
This technology can be applied in various secondary battery systems to enhance safety and prevent internal short-circuits.
Problems Solved
This innovation addresses the issue of internal short-circuits between electrode mixture layers in secondary batteries, which can lead to overheating and safety hazards.
Benefits
The benefits of this technology include improved battery safety, prevention of overheating, and the ability to stop charging in case of internal short-circuits.
Potential Commercial Applications
This technology can be utilized in electric vehicles, portable electronic devices, and energy storage systems to enhance battery safety and performance.
Possible Prior Art
Prior art may include similar methods of preventing internal short-circuits in battery systems, such as using different separator materials or designs.
Unanswered Questions
How does the depth of the short-circuit promoting portion affect its effectiveness in preventing internal short-circuits?
The abstract mentions a predetermined depth (d) for the short-circuit promoting portion, but it does not specify how this depth is determined or how it impacts the prevention of internal short-circuits.
What testing methods were used to validate the effectiveness of the short-circuit promoting portion in preventing internal short-circuits?
The abstract does not provide information on the testing procedures or results that demonstrate the efficacy of the short-circuit promoting portion in preventing internal short-circuits.
Original Abstract Submitted
An electrode body of a secondary battery described herein includes: a core portion where electrode mixture layers of a plurality of electrode sheets are laminated; terminal connecting portions where respective current collector foil exposed portions are laminated, and a mixture layer non-facing portion where the electrode mixture layer faces the current collector foil exposed portion, the mixture layer non-facing portion being formed in a boundary between the terminal connecting portion and the core portion. In the secondary battery described herein, a short-circuit promoting portion having a predetermined depth (d) is formed in a separator provided between the electrode sheets in the mixture layer non-facing portion. Hereby, before a battery temperature rapidly increases to a high-temperature range due to occurrence of internal short-circuit between the electrode mixture layers, internal short-circuit is caused between the electrode mixture layer and the current collector foil exposed portion, so that charging can be stopped.
